Note spelling: Kanguru not Kangaroo. 8GB. This is the deluxe version of the Kanguru Defender Basic. It works on Windows, Mac OS and Linux. It comes in a strong alloy case to make it tamper resistant. It has management features. Like the Basic, it has AES encryption in hardware. It comes in sizes from 8 GB to 128 GB. If you use it for backup, you can take it with you wherever you go. You can restore anything from your backup anywhere. If your computer or backups are stolen, you will still have the fob on your keychain. Because it is password protected, if you lose the fob, the finder cannot read it. It weighs only 11 grams. Specs. The drive is not particularly fast, but consider it is doing so some pretty heavy encryption/encryption on the fly. It is not nearly as fast as a hard disk. Read 30 MB/s, Write: 20 MB/s. manual. To see the advantages of the more expensive models, see the comparison matrix. When you unlock the secure partition, it remains unlocked to all applications on the system unless you lock it back. There is no way to unlock it to only one application. This probably applies to encrypted, password-protected USB flash drives generally. It appears as two drives. One contains the autoplay logon application and one is the secure datadrive which looks like a removable drive, with no media, when you have not logged on. It is all menu driven and duck simple. If you buy direct from the manufacturer, you will have a choice capacities and custom engravings. They do not take PayPal. They ship only to the USA. Despite the name, they are based in Massachusetts, not Australia. When your drive arrives, go to the Kanguru site to download and install the latest firmware upgrade.